154315 In an atom, electron of charge (-e) perform U.C.M. around a stationary positively charged nucleus, with period of revolution ' $T$ '. If ' $r$ ' is the radius of the orbit of the electron and ' $v$ ' is the orbital velocity, then the circulating current (I) is proportional to

154317 Two identical thin bar magnets, each of length $l$ and pole strength $\mathrm{m}$, are placed at right angle to each other with north pole of one touching south pole of the other. The magnetic moment of the system is

154318 If relative permeability of iron is 5500 , then its susceptibility is

154320 Coersivity of a magnet where the ferromagnet gets completely demagnetized is $3 \times 10^{3} \mathrm{Am}^{-1}$. The minimum current required to be passes in a solenoid having 1000 turns per metre, so that the magnet gets completely damagnetized when placed inside the solenoid is :

154315 In an atom, electron of charge (-e) perform U.C.M. around a stationary positively charged nucleus, with period of revolution ' $T$ '. If ' $r$ ' is the radius of the orbit of the electron and ' $v$ ' is the orbital velocity, then the circulating current (I) is proportional to

154317 Two identical thin bar magnets, each of length $l$ and pole strength $\mathrm{m}$, are placed at right angle to each other with north pole of one touching south pole of the other. The magnetic moment of the system is

154318 If relative permeability of iron is 5500 , then its susceptibility is

154320 Coersivity of a magnet where the ferromagnet gets completely demagnetized is $3 \times 10^{3} \mathrm{Am}^{-1}$. The minimum current required to be passes in a solenoid having 1000 turns per metre, so that the magnet gets completely damagnetized when placed inside the solenoid is :

154315 In an atom, electron of charge (-e) perform U.C.M. around a stationary positively charged nucleus, with period of revolution ' $T$ '. If ' $r$ ' is the radius of the orbit of the electron and ' $v$ ' is the orbital velocity, then the circulating current (I) is proportional to

154317 Two identical thin bar magnets, each of length $l$ and pole strength $\mathrm{m}$, are placed at right angle to each other with north pole of one touching south pole of the other. The magnetic moment of the system is

154318 If relative permeability of iron is 5500 , then its susceptibility is

154320 Coersivity of a magnet where the ferromagnet gets completely demagnetized is $3 \times 10^{3} \mathrm{Am}^{-1}$. The minimum current required to be passes in a solenoid having 1000 turns per metre, so that the magnet gets completely damagnetized when placed inside the solenoid is :

154315 In an atom, electron of charge (-e) perform U.C.M. around a stationary positively charged nucleus, with period of revolution ' $T$ '. If ' $r$ ' is the radius of the orbit of the electron and ' $v$ ' is the orbital velocity, then the circulating current (I) is proportional to

154317 Two identical thin bar magnets, each of length $l$ and pole strength $\mathrm{m}$, are placed at right angle to each other with north pole of one touching south pole of the other. The magnetic moment of the system is

154318 If relative permeability of iron is 5500 , then its susceptibility is

154320 Coersivity of a magnet where the ferromagnet gets completely demagnetized is $3 \times 10^{3} \mathrm{Am}^{-1}$. The minimum current required to be passes in a solenoid having 1000 turns per metre, so that the magnet gets completely damagnetized when placed inside the solenoid is :